Razor blade



oct. 9, 1945. `z. AUI-:REACH i 2,386,180

RAZOR BLADE Filed Nov. 8, 1941 Patented Oct. 9, 1945 UNITED STATES ATENTOFFICE This invention relates to novel safety razor blades of either thethin flexible type or rigid blades.

More particularly, my blade contains a ridge on the razor blade formedfrom the same material as the blade itself. Such ridge serves toreinforce the blade and to make the blade more rigid, thus passing onthat rigidity to the cutting edges of the blade so that it is maintainedin a straighter position to give the shaver a better ridge is flexedtransversely within the razor, theY tendency for the blade to snap orbreak is greatly reduced and because o'f the added rigidity to the bladeit is possible for the manufacturer to harden the temper of the blade inorder to provide cutting edges having greater resistance to the shaversbeard. y

A further object of my invention is to provide channels in a blade inconjunction with a ridge so that the blade can be made of heavier steel,at the same time giving the blade iiexibility, that is the blade can betransversely flexed when positioned within the razorhead. In a bladeofthe heavier type a better cutting edge can be given to the blade, atthe same time the edge canv be maintained in straighter position duringthe shaving operation, thus giving a better shave.

For a fuller understanding of the nature and objects of my inventionreference is had to the Fig. 3 is an end view of the blade shown inFigs.

1 and 2.

Referring to Figs. 1 to 3, inclusive, numeral |41` represents a bladecomprising a rectangular member |48 made of sheet steel withlongitudinal cutting edges U19-|49, the shorter sides ISU-|50 beingunsharpened. Along the longitudinal medial line on the face of blade |41there is a longitudinal ridge |5I, on either side of longitudinal ridgeI5! and in the face of the blade there are a series of parallel channels|52|52, the ridge l5! and channels |52 being formed of the same materialas that of the blade. The opposite face |53 of the blade |41 is entirelyflat as shown in Fig, 2. The ridge and channels function to locate theblade Within a razorhead, the channels providing greater flexibility tothe blade during transverse flexing of theA blade.

The blade heretofore described can be either of the thin flexible typeor of the rigid type and may be made in different proportions than theblade pictured in the drawing.

It is obvious that various changes and modifications may be made in thegeneral details of construction without departing from the spirit of theinvention, as set forth in the appended claim:

I claim:

A razor blade having one smooth face and 0n the other face a ridge alongthe longitudinal medial line of said blade and a series of longitudinalchannels spaced equally distant from the longitudinal medial line ofsaid blade, said channels and said ridge being parallel to one anotherand formed from the same material as said blade.

ZEMACH AUERBACH.

